Etymology: Equisetum: Latin for "horsetail" from equus, "horse," and seta, "bristle"
Plants: perennial fern ally
Habitat: fields, roadsides, and shores
Conservation Status: Native

Flora of North America: Flora of North America Floristic Rating: Coefficient of Conservatism = 3, Wetland Indicator = FACW- USDA Plants Database: Federal Distribution and detailed information including photos University of Wisconsin - Green Bay: Fern & Fern Allies: Photos, descriptions, information Dan Tenaglia's The Missouri Flora: Fabulous photographs; detailed descriptions; color and leave arrangement key. Southwest School of Botanical Medicine: Britton & Brown Illustrated Flora - 2nd Edition (1913) "An Illustrated Flora of the Northern United States and Canada"